array(4) {
  ["id"] => string(3) "362"
  ["name"] => string(6) "测温"
  ["url"] => string(47) "/industrial/sccw/pclis?catids=364&atp=1"
  ["pid"] => string(1) "0"
}

array(4) {
  ["id"] => string(3) "364"
  ["name"] => string(12) "手持测温"
  ["url"] => string(33) "/industrial/sccw/pclis?catids=364"
  ["pid"] => string(3) "362"
}

array(4) {
  ["id"] => string(3) "373"
  ["name"] => string(15) "PL二代 系列"
  ["url"] => string(21) "/industrial/sccw/pl2s"
  ["pid"] => string(0) ""
}